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This section provides an overview for water detection sensors as well as their applications and principles. Also, please take a look at the list of 24 water detection sensor manufacturers and their company rankings. Here are the top-ranked water detection sensor companies as of April, 2025: 1.Swift Sensors, 2.Dorlen Products, Inc., 3.Amphenol Thermometrics, Inc..
Table of Contents
Water detection sensors are sensors that detect water using long-wavelength light absorbed by water molecules.
General photoelectric sensors can detect most liquids, but since water is transparent, it becomes difficult to detect because of low light attenuation and penetration. Additionally, colored water or water with different color densities is even more difficult to detect because the amount of attenuation changes.
Water detection sensors, on the other hand, use long-wavelength light that is absorbed by water molecules, making it possible to detect transparent water, colored water, and water with different color densities.
Water detection sensors are used to detect the presence of water itself because they use long-wavelength light that is absorbed by water molecules. Examples include monitoring water at production sites where water is used, detecting the liquid level of water storage tanks, detecting liquid levels, and detecting whether plastic bottles or transparent glass containers are filled with liquid.
Also, since these sensors can stably detect even atomized water, they are used to monitor spray-based washing processes in business establishments.
Water detection sensors, like photoelectric sensors, detect the presence or absence of water by emitting light through a light emitter and receiving it at a sensor. 1.45um (1450nm) long wavelength light is used to enhance the absorption of water molecules.
By using long-wavelength light that is absorbed by water molecules, water detection sensors can stably detect water even in clear water, colored water, and water with different color densities, as the light is absorbed and intercepted by water molecules.
Water detection sensors are, in principle, divided into a light emitter and a light receiver, so they must be installed on both sides of the area where detection is to occur. While this is not a problem in an environment where installation space is available, it is not suitable for detecting water in pipes or pipelines in a confined space.
In such cases, compact, light-refractive water detection sensors or capacitive water detection sensors are suitable. Light refraction sensors detect water based on the difference in whether LED light passes through or reflects off the pipe, depending on the presence or absence of water. Capacitance detection sensors, on the other hand, detect the presence or absence of liquid by reading the change in the dielectric constant.
Both only require a single part, can be compactly installed on one side of a pipe or conduit, and can be used in environments where it is difficult to install long-wavelength light types.
Water detection sensors detect the presence of water utilizing long-wavelength light, while humidity sensors use a humidity-sensitive membrane to electrically detect changes in resistance and electrostatic capacitance caused by water droplets between comb-shaped electrodes, and correct for humidity.
The main purpose of water detection sensors is to detect the presence or absence of water. But the main difference is that the humidity sensor can, in principle, detect minute water droplets, so the percentage of water droplets in the atmosphere can be calculated and converted to humidity.
Recently, some smartphone models warn the user when a drop of water is detected on the USB power cord because of the risk of corrosion or deterioration of the electrode during charging. This principle also detects the resistance or capacitance change between the electrodes by converting it into an electrical voltage change.
However, there are still not many models that have such sensors that detect moisture. Many of the temperature and humidity displays often seen on smartphones are based on the identification of the current location using the GPS function, and the temperature and humidity information at that location is obtained and displayed.
*Including some distributors, etc.
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OMEGA Engineering Inc., founded in Norwalk, CT, in 1962 is a manufacturer of products used to measure temperature and humidity, flow and level, and pressure. The company's product portfolio includes thermocouple probes and assemblies, pressure gauges and switches, and air velocity measurement systems, wireless systems and portable optic sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company also offers customer services that include support, custom research projects and customized services.
Dorlen Products Inc., established in 1975 and headquartered in Milwaukee, Wisconsin, is a manufacturer of water leak detection equipment and systems. The company's product line caters to various industries, including commercial, industrial, and residential sectors. Its offerings encompass the Water Alert Standard Series, which includes water detector alarms, and the Water Alert Sensor Cable, designed for detecting water leaks in various applications. Additionally, it provides the Water Alert Ceiling Guard for ceiling-based leak detection.
Swift Sensors, founded in 2015 in the USA, is a manufacturer and supplier in the wireless sensor monitoring industry. The company offers solutions for equipment and infrastructure while proactively addressing minor issues before escalation. Its systems automate data records, ensure compliance, and provide analytical insight for operational monitoring, issuing alerts via email, SMS, or phone. Notably, the company's tracking systems are used in transport monitoring at airports, temperature supervision in restaurants, vaccine temperature tracking, medical lab temperature monitoring, and across sectors like education, industry, agriculture, and facilities management.
Amphenol Advanced Sensors, established in 1999 and headquartered in St. Marys, Pennsylvania, is a manufacturer and supplier of sensing technologies. Their diverse product portfolio includes temperature sensors like RTDs, thermocouples, and thermistors, serving applications in industrial automation, medical devices, and environmental monitoring. Furthermore, they offer a wide range of pressure sensors, such as absolute pressure, differential pressure, and vacuum sensors, utilized in industrial automation, medical devices, and automotive industries. They also provide an extensive array of air quality sensors, including CO2, VOC, and particulate sensors, serving applications in environmental monitoring, building automation, and healthcare sectors.
Honeywell International Inc. was founded in 1885 and headquartered in Charlotte, North Carolina. Honeywell is a diversified technology and manufacturing company to global customers in many industries such as aerospace, building technologies, performance materials, manufacturing, and safety. Honeywell produces hardware and software solutions for each industry it serves. In building technologies, Honeywell designs access controls, electrical and wiring, fire life safety, and employee training services. In aerospace, Honeywell designs cockpit systems and displays, engines, cabin management and cleaning, and health and usage monitoring.
Primex Wireless, Inc., located in Geneva, WI, is a manufacturer of wireless technologies founded in 1972. The wireless technologies automate labor-intensive, error-prone operations to safeguard sensitive property, lower risk, and free up staff to concentrate on more critical issues. The company produces synchronized clocks such as analog & digital clocks, transmitters, and environmental monitoring systems for temperature, IAQ, differential pressure, water leak, and contact closure monitoring. It also provides mass notification systems such as InfoBoard displays, and Bell controllers applied in pharmacy, education, healthcare, business, and architecture fields.
Monnit, a private American company started in 2010, is a manufacturer of wireless sensors and IoT data solutions for enterprise remote monitoring worldwide. The company has deep roots as a global IoT supplier with over 52,000 customers, over 39 billion data readings, and more than 2,000 product SKUs. Through modular design, dynamic production, and global distribution, they thrive in smart-device manufacturing. The actionable data they provide—anytime, anywhere—is the solution for virtually any application or use case, and it's IoT data that fuels the most rewarding business solutions.
National Control Devices LLC, established in 1995 in Osceola, Missouri, is a manufacturer and designer of IoT-connected NCD devices and hardware for tech companies. The company makes IoT devices such as sensors, relay controllers, and accessories. It also provides services like customizing enclosures and boards and printing colors that help customers reduce wiring, power consumption and production costs. The company has partnered with PyComm, Particle, Losant, Blynk and Cayenne brands. Its authorized distributors include Relay Pros, Reboot Shop, Logic Bus, and Digi Key.
Veris Industries, established in 1992 and based in Tualatin, Oregon, is a manufacturer and distributor of environmental sensing and power monitoring instruments used in commercial HVAC, smart buildings, renewable energy, industrial control, and energy management applications. The company’s power monitoring portfolio comprises of power meters, power metering CTs, current switches, current transducers, and current monitor relays for monitoring, regulating, and reducing energy use. Veris's environmental sensing instruments include pressure sensors, temperature sensors, humidity sensors, water & leak detectors, and smoke detectors used in commercial and residential building automation systems. The company operates under ISO 9001 and ISO 14001 quality standards.
Flowline, Inc., based in Los Alamitos, California, is a supplier that specializes in providing industrial instrumentation solutions for level measurement and control. Its product range includes Reflective Ultrasonic Sensors, such as EchoPod and EchoTouch, designed for efficient performance in condensation-prone environments. The company also offer Radar Sensors for liquid level measurement and Guided Wave Sensors suitable for both liquid and solids level measurement. These solutions enable safe and efficient management of contained liquid and solid assets.
STONKAM CO. LTD. is a developer and manufacturer of driving assistance products that was established in 2003 in Guangzhou, China. The company’s specialized product lineup includes advanced driver assistance systems (ADAS) with features such as forward collision and lane departure warnings, around view systems for providing 360 degree panoramic views around a vehicle, and parking sensors for detecting the distance and direction of obstacles around a vehicle. Aside from its products, the company also offers OEM and ODM services for its clients. It is certified to ISO 9001, ISO 14001, IATF 16949, and OHSAS 18001 standards.
Venture Electronics, founded in 2010, is a professional PCB and assembly manufacturer and turnkey solution provider headquartered in Shenzhen, China. The company provides a diverse selection of PCB manufacturing and assembly services, including PCB design and layout, fabrication, assembly, and turnkey PCB solutions, along with prototypes, small to large batches, high-density, radio frequency PCBs, and custom PCBs. It also specializes in ceramic PCBs with high thermal conductivity and low expansion coefficient. The company is ISO 9001 certified and conforms to RoHS regulations, serving aerospace, automotive, industrial, medical, and telecommunications sectors.
Tutorials Point (India) Private Limited, founded in 2014, is an Indian manufacturer based in Madhapur, Telangana, specializing in developing an online library and a digital content marketplace. The company’s platform, Tutorials Point, offers videos, e-books, and other learning materials within the Text Library Content on technical and non-technical subjects, including academic subjects, big data and analytics, computer science and programming, machine learning, and website development. The platform features over 5,000 premium courses, 1,200 expert tutors, and 30 million online students. Additionally, the company offers team training solutions and develops the Digital Content Marketplace, allowing users to sell video courses and e-books.
Tatsuta Electric Wire and Cable Co. Ltd., established in 1945 and headquartered in Higashiosaka, Japan, is a manufacturer of electric wires, electronic materials, medical products, and sensors. The company began manufacturing and selling telecommunication wires and cables in 1955. In 1981, it started manufacturing water leakage detection systems, and in 1984, it began selling bonding wire. Its telecommunications division received ISO 9001 certification in 1996, and the electric wire and cable division in 1998. The company began the production of EMI shielding film in 2003, and its product portfolio includes broadcasting cables, bonding wires, liquid leakage sensors, and functional paste.
Daitron Incorporated, founded in 1986 with headquarters in the USA as a subsidiary of Daitron Co. Ltd. in Japan, is a manufacturer of equipment, components, parts, and consumables for the electronics and semiconductor industries. The company's products include low-noise AC/DC power supplies, fluid process components, vision imaging equipment, and high-precision wafer processing equipment. Daitron's products are used as cable harnesses for consumer vehicles, batteries for consumer devices and motor vehicles, and radar sensing equipment and cables. The company also provides cable assembly services and custom harnesses, control boxes, and mechanical assemblies for various industrial applications.
FIBAR GROUP S.A., founded in 2010, is a manufacturer of smart home and Internet of Things (IoT) solutions based in Poland. The company primarily designs and creates a range of smart home devices, controllers, and related technology. These products enable automation and control of various aspects of a smart home or IoT environment. The company integrates Z-Wave technology into its products. Z-Wave is a wireless communication protocol designed for home automation and IoT applications, allowing devices to communicate and create a connected and automated environment. Its products can be adapted and integrated into various settings, from individual residences to commercial buildings.
Since 2003, the UK based company CMR Electrical has been designing and manufacturing its own in-house leak detection systems and alarms. CMR Electrical provides a various range of products, including temperature alarm systems, water, oil, and fuel leaks detection systems, and BREEAM waterflow detection systems. Manufacturing timelines and product quality are completely under the company’s control. Furthermore, this gives the business the ability to tailor the product to cater to the particular requirements of the user.
Ranking as of April 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Swift Sensors |
8.3%
|
| 2 | Amphenol Thermometrics, Inc. |
7.0%
|
| 3 | Dorlen Products, Inc. |
6.6%
|
| 4 | Tutorials Point |
5.8%
|
| 5 | Honeywell International Inc |
5.8%
|
| 6 | Primex Wireless, Inc. |
5.4%
|
| 7 | FIBAR GROUP S.A. |
5.0%
|
| 8 | CMR Electrical |
5.0%
|
| 9 | Monnit |
5.0%
|
| 10 | Veris Industries |
4.5%
|
Derivation Method
The ranking is calculated based on the click share within the water detection sensor page as of April 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
13 | 68.4% |
|
China
|
2 | 10.5% |
|
India
|
1 | 5.3% |
|
Japan
|
1 | 5.3% |
|
Canada
|
1 | 5.3% |
|
United Kingdom
|
1 | 5.3% |
55 products found
55 products
Toyoko Chemical
710+ people viewing
Last viewed: 7 hours ago
Up to 10 detection portions can be connected to one control unit, so it is possible to follow the leakage part in the area. (Control unit RS-1000CA...
4 models listed
Toyoko Chemical
660+ people viewing
Last viewed: 3 hours ago
Up to 10 detection portions can be connected to one control unit, so it is possible to follow the leakage part in the area. (Control unit RS-1000CA...
4 models listed
Toyoko Chemical
1080+ people viewing
Last viewed: 5 hours ago
The cable of the sensor uses a 3 -core shield wire. Connect the power to the red line and the net. ･ The load can be directly connected to the out...
8 models listed
Unimation System Co., Ltd.
250+ people viewing
Last viewed: 8 hours ago
By installing it in a place where you are concerned about water leakage, it will notify you with sound and light in case of an emergency. The senso...
Toyoko Chemical
490+ people viewing
Last viewed: 2 hours ago
The leak sensor RS-2000 is composed of the combination of the control unit and the detection unit as follows. ･ RS-2000C type: Connect one inspect...
2 models listed
Toyoko Chemical
520+ people viewing
Last viewed: 8 hours ago
The leak sensor RS-2000 is composed of the combination of the control unit and the detection unit as follows. ･ RS-2000C type: Connect one inspect...
4 models listed
Toyoko Chemical
510+ people viewing
Last viewed: 8 hours ago
The RS-3000 and 3500 series is a sensor that detects leakage solution using the refraction principle of light. ■ Characteristics ･ The RS-3000, 35...
4 models listed
Toyoko Chemical
390+ people viewing
Last viewed: 8 hours ago
The RS-3000 and 3500 series are sensors that detect leakage solutions using the refraction principle of light. ■ Characteristics ･ The RS-3000, 35...
2 models listed
![Liquid leak detector with built-in amplifier [Application-specific type] Liquid leak switch with built-in amplifier-Seho Co., Ltd.](https://metoree.s3.ap-northeast-1.amazonaws.com/img/products-new/30029272024060120.png)
Seho Co., Ltd.
370+ people viewing
Last viewed: 8 hours ago
■Features ・Liquid leak detector with built-in amplifier [Application-specific type] Liquid leak switch with built-in amplifier realizes reliable d...
5 models listed
Toyoko Chemical
390+ people viewing
Last viewed: 8 hours ago
In the industry's first point type essential safety safety explosion -proof sensor You can use it with confidence in 0 types, 1, and two dangerous...
Toyoko Chemical
370+ people viewing
Last viewed: 8 hours ago
In the industry's first point type essential safety safety explosion -proof sensor You can use it with confidence in 0 types, 1, and two dangerous...
Toyoko Chemical
430+ people viewing
Last viewed: 3 hours ago
Eliminate the time loss to identify the leakage point in the large and complex factory facilities. Immediate detection and action can be made by al...
Toyoko Chemical
460+ people viewing
Last viewed: 8 hours ago
Eliminate the time loss to identify the leakage point in the large and complex factory facilities. Immediate detection and action can be made by al...
Sanko Ematech Co., Ltd.
280+ people viewing
Last viewed: 3 hours ago
■Product description Suitable for lithium battery leakage inspection. Sensor for testing various media leaks under atmospheric pressure ■Features ...
Hakaru Plus Co., Ltd.
200+ people viewing
Last viewed: 7 hours ago
■Summary ・Continuous measurement of sand surface water percentage ・Measurement accuracy ±0.3% ・Patent acquisition ■Features ・Continuous measur...
Hakaru Plus Co., Ltd.
210+ people viewing
Last viewed: 7 hours ago
■Summary ・Continuous measurement of gravel surface water percentage ・Measurement accuracy ±0.2% ・Built-in aggregate temperature detection sensor...
Toyoko Chemical
360+ people viewing
Last viewed: 7 hours ago
Up to 10 detection portions can be connected to one control unit, so it is possible to follow the leakage part in the area. (Control unit RS-1000CA...
Excite Co., Ltd.
380+ people viewing
Last viewed: 2 hours ago
■Features - Equipped with a buzzer, so even if multiple sensors are connected to the same channel on the controller or display panel, you can tell ...
Excite Co., Ltd.
330+ people viewing
Last viewed: 6 hours ago
■Features - Light, thin, and small size allows operation in a wide range of locations. ・Water leakage is detected using two electrodes at the bott...
Kyodo International, Inc.
210+ people viewing
Last viewed: 2 hours ago
This is a "standard detection kit" that allows you to immediately monitor water leaks in multiple locations on your PC or tablet by simply installi...
Nakamura Electric Manufacturing Co., Ltd.
330+ people viewing
Last viewed: 57 minutes ago
We prepare sensors that are ideal for measurement and detection in hazardous areas. A liquid leakage sensor with an intrinsically safe explosion-p...
6 models listed
Mori Engineering Co., Ltd.
380+ people viewing
Last viewed: 4 hours ago
This is a measurement sensor (piezoelectric sensor) for water leakage measurement equipment.
Mori Engineering Co., Ltd.
350+ people viewing
Last viewed: 7 hours ago
This is a small handy type water leakage measuring device.
Panasonic Industry Co., Ltd.
70+ people viewing
Last viewed: 7 hours ago
basic information ■Proposing sensors suitable for water detection Obtained UL, CE, UKCA. (UL: Recognition certified (excluding 5m cable length type...
